Cooker top



FIG. 1 is a top perspective view of a cooker top showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is a front elevational view thereof.

The undisclosed bottom view is flat and unornamented. 

The ornamental design for a cooker top, as shown. 